724540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2131}}^1$

素因数の和:2157

約数の個数: 24

約数和(自身を含む): 1611792

約数和(自身を除く): 887252

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 2131, 4262, 8524, 10655, 21310, 36227, 42620, 72454, 144908, 181135, 362270, 724540]

約数ペア:

[(1, 724540), (2, 362270), (4, 181135), (5, 144908), (10, 72454), (17, 42620), (20, 36227), (34, 21310), (68, 10655), (85, 8524), (170, 4262), (340, 2131)]